Greenlandic Minerals and Collector Stones
Beyond tugtupite, nuummite, and kakortokite, Greenland is home to numerous minerals frequently encountered by collectors. Some are internationally renowned, first described from Greenlandic localities; others are well-known minerals found in particularly beautiful material in Greenland. Here's an overview.
Background and Selected Minerals
Geology, not Healing Claims: We describe mineralogy, origin, and appearance – not effects or healing assertions.
Fact-based Reference Knowledge: Origin, mineralogy, colour, and hardness compiled in one place – written for jewellery makers and collectors.
Our Own Stones in Stock: We, however, stock thousands of genuine stones and crystals at our shop on Nybrovej 83 in Gentofte.
Cryolite – the mineral that almost vanished
Cryolite was mined in Ivittuut, South Greenland, and was of significant industrial importance for many decades due to its use in aluminium production. Mining has ceased, and the original deposit is largely depleted. Therefore, Greenlandic cryolite is now primarily a collector's mineral.
The mineral is soft – around 2.5-3 on the Mohs scale – and unsuitable for wearable jewellery. It is a display specimen.
Eudialyte – the red in kakortokite
Eudialyte is a complex zirconium-bearing silicate found in agpaitic rocks. In South Greenland, it occurs in quantities that make it one of the most distinctive red components in local rocks, including kakortokite. The colour is typically raspberry red to brownish-red, and crystals are often scattered within a dark groundmass.
Ruby from West Greenland
In the Aappaluttoq area near Fiskenæsset, corundum of ruby and pink sapphire quality is found. The deposit has been subject to commercial extraction, and the material is typically sold with documentation of origin. When purchasing Greenlandic ruby, this documentation is a significant part of its value.
What makes a collector's stone interesting?
- Documented find location – preferably with a locality name, not just 'Greenland'.
- Intact crystal faces rather than fractured surfaces.
- Clear contrast between mineral and matrix.
- Information on any treatment, stabilisation, or filling.
How to Use This Page
This page provides reference knowledge for jewellery makers and collectors, covering the geological nature of the stone, its origin, appearance, and considerations for processing and authenticity.
If you wish to explore natural stones further, you will find overviews of genuine stones, crystals, and semi-precious stones – strands, loose beads, and rough specimens – under Stones & Crystals.
FAQ
Which minerals is Greenland most famous for?
Cryolite from Ivittuut, eudialyte and tugtupite from Ilímaussaq, nuummite from the Nuuk area, and ruby and pink sapphire from Aappaluttoq near Fiskenæsset.
Is Greenlandic cryolite still available?
Mining in Ivittuut has ceased, and the material is primarily traded today as collector specimens from old collections. New material is very limited.
Are Greenlandic collector stones expensive?
It varies with rarity, quality, and documentation. Common eudialyte and sodalite are accessible, while tugtupite and good cryolite fetch significantly higher prices.